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C85800 Brass vs. C68100 Brass

Both C85800 brass and C68100 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C85800 brass and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 15
29
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 380
380
Tensile Strength: Yield (Proof), MPa 210
140

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 900
890
Melting Onset (Solidus), °C 870
870
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 84
98
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
24
Electrical Conductivity: Equal Weight (Specific), % IACS 22
27

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
86
Resilience: Unit (Modulus of Resilience), kJ/m3 210
94
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
13
Strength to Weight: Bending, points 15
15
Thermal Diffusivity, mm2/s 27
32
Thermal Shock Resistance, points 13
13

Alloy Composition


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Aluminum (Al), % 0 to 0.55
0 to 0.010
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 57 to 69
56 to 60
Iron (Fe), % 0 to 0.5
0.25 to 1.3
Lead (Pb), % 0 to 1.5
0 to 0.050
Manganese (Mn), % 0 to 0.25
0.010 to 0.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.25
0.040 to 0.15
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 1.5
0.75 to 1.1
Zinc (Zn), % 31 to 41
36.4 to 43
Residuals, % 0 to 1.3
0 to 0.5